Some of those aren't real needs. E.g., "without needing a bank" is not a real problem. The "diversify with an asset that is truly global" is similarly an ideological statement, not a financial one.
The "without taking fees" thing is slightly more plausible, but in practice most people are happy to pay 2-3%, or have merchants pay that, and payment networks aren't free to run, so I'm not sure how plausible it is. Sending money to family can be solved much better with non-blockchain methods, which is why Bitcoin has approximately zero foothold there.
The "inflating like crazy" thing is similarly mostly a fantasy. How many countries are falling apart financially but where rule of law, power service, and internet service are stable enough to run blockchain nodes? How much better would a barely-accessible digital currency be than scarce USD? Why not just buy some directly useful inflation hedge, like medicine or canned goods?
Even if it were good for the "financial collapse" use case, that doesn't mean much in the rest of the world. The US dollar and the Euro are useful in unstable financial environments because they have value elsewhere. But the reverse isn't true; nobody in the US holds USD because it's the black market currency of choice in Caracas. So that use case isn't anything to build a real system on.